The New Porsche Cayman | Part Four

Porsche Cayman

Porcshe Cayman

The suspension with its new set-up gives the new Porsche Cayman models a combination of even greater driving dynamics and enhanced comfort all in one. Modification of the valve control map on the steering gear serves furthermore to reduce steering forces, giving the Porsche Cayman more agile and spontaneous steering behaviour.

The wheels come in new designs and are half an inch wider than previously on the Porsche Cayman 2.9-litre model in order to accommodate the larger brake system of the S-models which are now fitted on the front axle. The Porsche Cayman and Cayman S feature the latest generation Porsche Stability Management (PSM) which now offers two new functions: Brake Pre-Loading and the Brake Assistant. Whenever the driver lifts off the throttle pedal very quickly - which is typical immediately prior to an emergency braking manoeuvre - the PSM hydraulic control unit builds up an appropriate level of pressure in the brakes before the driver even presses the brake pedal down, which has the effect of moving the brake pads slightly towards the discs, and ready for immediate action. This significantly improves brake response and shortens stopping distances accordingly.

When recognising that the driver is braking in an emergency due to the very fast operation of the brake pedal and a defined brake force, the PSM hydraulic control unit actively delivers the brake pressure required for maximum stopping power.

In conjunction with 18- and 19-inch wheels, the new models in the Cayman range are also available with a limited-slip differential on the rear axle. Locking action is 22 per cent under power and 27 per cent in overrun. This significantly improves both traction and stability, providing a substantially higher level of performance on winding roads, particularly on the race track. A further advantage is the more stable load change behaviour. At the same time, the mechanical differential, through its particular function, interacts perfectly with the electronic Automatic Brake Differential (ABD) for optimum traction control, the locking action delaying the tendency of one wheel to spin on a road surface slippery only on one side.

Published 19 November 2008 Staff

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